The CBI, which is probing the Sheena Bora murder case, today sought more time to file its reply on the desire expressed by the prime accused - Indrani Mukerjea's former driver Shyamvar Rai to turn approver in the case.

Special Judge HS Majahan adjourned the case until 6 June after special CBI prosecutor Kavita Patil sought more time.

Rai had on 11 May sought to turn approver, saying he wants to "disclose all truths" as he had allegedly taken part in the crime. He had also written a two-page letter to the court seeking pardon. The agency had earlier sought time till today to file its reply.

Rai was the first accused to be arrested in the case in August 2015. The murder came to light after Rai was picked up in connection with an arms case and later spilled the beans on the crime.

He had last year recorded his confessional statement before a magistrate under section 164 of CrPc, which, unlike a police statement, is admissible in the trial. Indrani, her husband and media baron Peter Mukerjea, her former husband Sanjeev Khanna and Rai are all accused in the case.

Sheena (24), Indrani's daughter from an earlier relationship, was strangulated inside a car in April 2012. The remains of her burnt body were found in a forest in Raigad. Indrani, Khanna, and Rai were arrested in August last year and Peter in November.

According to the CBI, Peter was part of the murder conspiracy. While Peter (59) and Khanna are lodged in Arthur Road prison, Indrani (43) is in Byculla womens' jail and Rai in Thane jail.